1/* 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.sun.java.swing.plaf.motif; 27 28import javax.swing.*; 29import javax.swing.plaf.*; 30import javax.swing.tree.*; 31import java.awt.*; 32import java.awt.event.*; 33import java.beans.*; 34import java.io.*; 35import java.util.*; 36 37/** 38 * Motif rendered to display a tree cell. 39 * <p> 40 * <strong>Warning:</strong> 41 * Serialized objects of this class will not be compatible with 42 * future Swing releases. The current serialization support is appropriate 43 * for short term storage or RMI between applications running the same 44 * version of Swing. A future release of Swing will provide support for 45 * long term persistence. 46 * 47 * @author Jeff Dinkins 48 */ 49@SuppressWarnings("serial") // Superclass is not serializable across versions 50public class MotifTreeCellRenderer extends DefaultTreeCellRenderer 51{ 52 static final int LEAF_SIZE = 13; 53 static final Icon LEAF_ICON = new IconUIResource(new TreeLeafIcon()); 54 55 public MotifTreeCellRenderer() { 56 super(); 57 } 58 59 public static Icon loadLeafIcon() { 60 return LEAF_ICON; 61 } 62 63 /** 64 * Icon for a node with no children. 65 * <p> 66 * <strong>Warning:</strong> 67 * Serialized objects of this class will not be compatible with 68 * future Swing releases. The current serialization support is appropriate 69 * for short term storage or RMI between applications running the same 70 * version of Swing. A future release of Swing will provide support for 71 * long term persistence. 72 */ 73 @SuppressWarnings("serial") // Same-version serialization only 74 public static class TreeLeafIcon implements Icon, Serializable { 75 76 Color bg; 77 Color shadow; 78 Color highlight; 79 80 public TreeLeafIcon() { 81 bg = UIManager.getColor("Tree.iconBackground"); 82 shadow = UIManager.getColor("Tree.iconShadow"); 83 highlight = UIManager.getColor("Tree.iconHighlight"); 84 } 85 86 public void paintIcon(Component c, Graphics g, int x, int y) { 87 g.setColor(bg); 88 89 y -= 3; 90 g.fillRect(x + 4, y + 7, 5, 5); 91 92 g.drawLine(x + 6, y + 6, x + 6, y + 6); 93 g.drawLine(x + 3, y + 9, x + 3, y + 9); 94 g.drawLine(x + 6, y + 12, x + 6, y + 12); 95 g.drawLine(x + 9, y + 9, x + 9, y + 9); 96 97 g.setColor(highlight); 98 g.drawLine(x + 2, y + 9, x + 5, y + 6); 99 g.drawLine(x + 3, y + 10, x + 5, y + 12); 100 101 g.setColor(shadow); 102 g.drawLine(x + 6, y + 13, x + 10, y + 9); 103 g.drawLine(x + 9, y + 8, x + 7, y + 6); 104 } 105 106 public int getIconWidth() { 107 return LEAF_SIZE; 108 } 109 110 public int getIconHeight() { 111 return LEAF_SIZE; 112 } 113 114 } 115} 116